公开(公告)号：US5334295A

公开(公告)日：1994-08-02

申请号：US58776

申请日：1993-05-03

申请人： John P. Gallagher, deceased ,  Robert J. Masi

发明人： John P. Gallagher, deceased ,  Robert J. Masi

IPC分类号： G01N27/416 ,  G01N27/49 ,  G01N27/26

CPC分类号： G01N27/404

摘要： An oxygen sensor for measuring oxygen in the ppb range. The sensor comprises an electrochemical cell. The oxygen is metered to the cathode based on gaseous phase diffusion to provide a measurement proportional to volumetric concentration. Hydrogen is metered to the anode in an amount in excess of the oxygen being reduced at the cathode. A current is generated which is linear to the volumetric concentration of the oxygen in the sample gas. The concentration of the oxygen is measured based on the current generated.

摘要翻译： 氧气传感器，用于测量ppb范围内的氧气。 传感器包括电化学电池。 基于气相扩散将氧计量到阴极以提供与体积浓度成比例的测量。 将氢气以超过在阴极处还原的氧的量计量到阳极。 产生与样品气体中的氧的体积浓度成线性的电流。 氧气的浓度基于产生的电流来测量。

公开(公告)号：US5256273A

公开(公告)日：1993-10-26

申请号：US864491

申请日：1992-04-07

申请人： John P. Gallagher, deceased ,  Robert J. Masi

发明人： John P. Gallagher, deceased ,  Robert J. Masi

IPC分类号： G01N27/416 ,  G01N27/49 ,  G01A27/26

CPC分类号： G01N27/404

摘要： An oxygen sensor for measuring oxygen in the ppb range. The sensor comprises an electrochemical cell. The oxygen is metered to the cathode based on gaseous phase diffusion to provide a measurement proportional to volumetric concentration. Hydrogen is metered to the anode in an amount in excess of the oxygen being reduced at the cathode. A current is generated which is linear to the volumetric concentration of the oxygen in the sample gas. The concentration of the oxygen is measured based on current generated.

摘要翻译： 氧气传感器，用于测量ppb范围内的氧气。 传感器包括电化学电池。 基于气相扩散将氧计量到阴极以提供与体积浓度成比例的测量。 将氢气以超过在阴极处还原的氧的量计量到阳极。 产生与样品气体中的氧的体积浓度成线性的电流。 氧气的浓度基于产生的电流测量。

公开(公告)号：US5393392A

公开(公告)日：1995-02-28

申请号：US232747

申请日：1994-04-25

申请人： Robert J. Masi

发明人： Robert J. Masi

IPC分类号： G01N27/416 ,  G01N27/49 ,  G01N27/26

CPC分类号： G01N27/404

摘要： A polarographic electrochemical cell for the measurement of oxygen in ppb. The cathode in the system is a non-depleting carbon polytetrafluoroethylene electrode catalytically specific for oxygen reduction. The anode is a composite nickel matrix. The reaction at the anode is an electrochemical oxidation reaction but there are no soluble byproducts that contaminate the electrode. The reaction at the anode is a simple oxidation, state-of-change of the nickel in the nickel composite matrix.

摘要翻译： 用于测量氧气的极谱电化学电池（ppb。 系统中的阴极是对于氧还原具有催化特异性的非耗尽碳聚四氟乙烯电极。 阳极是复合镍基体。 在阳极处的反应是电化学氧化反应，但是没有污染电极的可溶性副产物。 在阳极处的反应是镍复合基质中镍的简单氧化，变化的状态。